<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  
</body>
<script>
  const obj = {
    foo:'jack',
    method1:function(){
      eval('console.log(this)');
    },
    method2:function(){
      Function('console.log(this)')();
    },
    method3:function(){
      (0,eval)('console.log(this)')
    }
  }
  
  obj.method1();
  obj.method2();
  obj.method3();
  
</script>
</html>
